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1.1 root 1: /* This file contains the definitions and documentation for the
2: additional tree codes used in the GNU C++ compiler (see tree.def
3: for the standard codes).
4: Copyright (C) 1987, 1988, 1990, 1993 Free Software Foundation, Inc.
5: Hacked by Michael Tiemann ([email protected])
6:
7: This file is part of GNU CC.
8:
9: GNU CC is free software; you can redistribute it and/or modify
10: it under the terms of the GNU General Public License as published by
11: the Free Software Foundation; either version 2, or (at your option)
12: any later version.
13:
14: GNU CC is distributed in the hope that it will be useful,
15: but WITHOUT ANY WARRANTY; without even the implied warranty of
16: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: GNU General Public License for more details.
18:
19: You should have received a copy of the GNU General Public License
20: along with GNU CC; see the file COPYING. If not, write to
21: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
22:
23:
24: /* Reference to the contents of an offset
25: (a value whose type is an OFFSET_TYPE).
26: Operand 0 is the object within which the offset is taken.
27: Operand 1 is the offset. The language independent OFFSET_REF
28: just won't work for us. */
29: DEFTREECODE (CP_OFFSET_REF, "cp_offset_ref", "r", 2)
30:
31: /* For DELETE_EXPR, operand 0 is the store to be destroyed.
32: Operand 1 is the value to pass to the destroying function
33: saying whether the store should be deallocated as well. */
34: DEFTREECODE (DELETE_EXPR, "dl_expr", "e", 2)
35: DEFTREECODE (VEC_DELETE_EXPR, "vec_dl_expr", "e", 2)
36:
37: /* Value is reference to particular overloaded class method.
38: Operand 0 is the class name (an IDENTIFIER_NODE);
39: operand 1 is the field (also an IDENTIFIER_NODE).
40: The COMPLEXITY field holds the class level (usually 0). */
41: DEFTREECODE (SCOPE_REF, "scope_ref", "r", 2)
42:
43: /* When composing an object with a member, this is the result.
44: Operand 0 is the object. Operand 1 is the member (usually
45: a dereferenced pointer to member). */
46: DEFTREECODE (MEMBER_REF, "member_ref", "r", 2)
47:
48: /* Type conversion operator in C++. TREE_TYPE is type that this
49: operator converts to. Operand is expression to be converted. */
50: DEFTREECODE (TYPE_EXPR, "type_expr", "e", 1)
51:
52: /* For CPLUS_NEW_EXPR, operand 0 is function which performs initialization,
53: operand 1 is argument list to initialization function,
54: and operand 2 is the slot which was allocated for this expression. */
55: DEFTREECODE (NEW_EXPR, "nw_expr", "e", 3)
56: DEFTREECODE (VEC_NEW_EXPR, "vec_nw_expr", "e", 3)
57:
58: /* A throw expression. operand 0 is the expression, if there was one,
59: else it is NULL_TREE. */
60: DEFTREECODE (THROW_EXPR, "throw_expr", "e", 1)
61:
62: /* Template definition. The following fields have the specified uses,
63: although there are other macros in cp-tree.h that should be used for
64: accessing this data.
65: DECL_ARGUMENTS template parm vector
66: DECL_TEMPLATE_INFO template text &c
67: DECL_VINDEX list of instantiations already produced;
68: only done for functions so far
69: For class template:
70: DECL_INITIAL associated templates (methods &c)
71: DECL_RESULT null
72: For non-class templates:
73: TREE_TYPE type of object to be constructed
74: DECL_RESULT decl for object to be created
75: (e.g., FUNCTION_DECL with tmpl parms used)
76: */
77: DEFTREECODE (TEMPLATE_DECL, "template_decl", "d", 0)
78:
79: /* Index into a template parameter list. This parameter must be a type.
80: Use TYPE_FIELDS to find parmlist and index. */
81: DEFTREECODE (TEMPLATE_TYPE_PARM, "template_type_parm", "t", 0)
82:
83: /* Index into a template parameter list. This parameter must not be a
84: type. */
85: DEFTREECODE (TEMPLATE_CONST_PARM, "template_const_parm", "c", 2)
86:
87: /* For uninstantiated parameterized types.
88: TYPE_VALUES tree list:
89: TREE_PURPOSE template decl
90: TREE_VALUE parm vector
91: TREE_CHAIN null
92: Other useful fields to be defined later. */
93: DEFTREECODE (UNINSTANTIATED_P_TYPE, "uninstantiated_p_type", "t", 0)
94:
95: /* A thunk is a stub function.
96:
97: Thunks are used to implement multiple inheritance:
98: At run-time, such a thunk subtracts THUNK_DELTA (an int, not a tree)
99: from the this pointer, and then jumps to DECL_INITIAL
100: (which is an ADDR_EXPR whose operand is a FUNCTION_DECL).
101:
102: Other kinds of thunks may be defined later. */
103: DEFTREECODE (THUNK_DECL, "thunk_decl", "d", 0)
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